Senior Telco Network Administrator

2 days ago

Novi Sad, Vojvodina, Serbia Avenga Full time €60,000 - €80,000 per year

This is us

At Avenga, we believe that human creativity empowers technology that matters. Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, enterprise solutions, CX, UX and Ul design, managed services, product development, and software development.

This is your role

Advanced Networking Expertise

Routing & Core Protocols

•Proficient in OSPF, ISIS, and BGP for scalable and resilient routing architectures

•Experience with first-hop redundancy protocols such as VRRP, HSRP, and GLBP

•Strong understanding of Virtual Routing and Forwarding (VRF) for network segmentation

•Hands-on experience with MPLS technologies including LDP and RSVP for efficient packet forwarding

•Skilled in Traffic Engineering to optimize network performance and resource utilization

•Advanced Quality of Service (QoS) configuration for prioritizing critical traffic

•Capable of designing and implementing complex route policies and redistribution strategies

MPLS & VPN Technologies

•Expertise in MPLS Layer 2 and Layer 3 VPNs for enterprise connectivity

•Familiarity with Inter-AS VPN solutions (Options B and C) for multi-provider environments

•Knowledge of IPv6 over MPLS using 6PE and 6VPE

•Experience with VPLS and Hierarchical VPLS for multipoint Ethernet services

•Understanding of Next-Generation Multicast VPN (NG-MVPN) for multicast traffic delivery

WAN & Overlay Technologies

•Proven experience deploying and managing SD-WAN solutions to enhance WAN flexibility, performance, and cost-efficiency
High Availability & Network Protection

•Strong grasp of high availability mechanisms including Fast Reroute (FRR), Loop-Free Alternates (LFA), and link/node protection to ensure uninterrupted service
Advanced Multicast

•In-depth knowledge of multicast protocols such as PIM, MSDP, and IGMP for efficient group communication across networks

Hands-on experience with major networking platforms:

•Cisco (preferred)

•Fortinet

•Juniper

•Nokia (strong advantage)

Security Expertise

Firewall & Threat Prevention

•Experience with traditional firewalls and next-generation solutions (IPS/IDS/NGFW)

•Skilled in configuring and managing IPSec VPNs including DMVPN, GET VPN, and FlexVPN

•Familiarity with Remote Access VPNs using AnyConnect and FortiClient

Threat Mitigation & Traffic Control

•Knowledge of BGP-based security techniques such as Remote Triggered Black Hole (RTBH) and Flowspec

•Experience with web proxies, URL filtering, and NAT for secure and controlled internet access

•Ability to analyze security logs and NetFlow data for threat detection and performance monitoring

•Competence in correlating and responding to security incidents in real-time

Identity & Access Control

•Proficiency in Cisco Identity Services Engine (ISE) for centralized access control

•Experience with 802.1X authentication and TrustSec for secure network access

•Familiarity with MACsec for Layer 2 encryption

•Understanding of virtual security contexts (VDOMs) for multi-tenant environments

•Implementation of multi-factor authentication using DUO 2FA

We take pride in the diverse skills and character of our teams, welcoming everyone to apply and contribute to our collective strength.

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